Bar support and spacer for concrete reinforcements.



Y H. HJLAMPET. BAR syfgf-pnrmo SPACER Foa CONCRETE HEINFORCEMENTS.

"f"-. APPuc/mufuao rm@ 191m Patented Apr. 23, 1918.

HENRY H. LMPERT, 0F CHICAGO, ILLINOIS.

BAR SUPPORT AND SPACER FOR CONCRETE REINFORCEMENTS.

prising separately formed bar clamping members and spacing meansconnected together and adapted for use in concrete reinforcements so asto permit the quick and' convenient arrangement of reinforcing barspreparatory to having concrete poured therearound.

An illustrative-embodiment of the invention is shown in the accompanyingdrawings, in which Figure l is a perspective view of a bar supportingand spacing device constructed according to this invention.

' Fig.. 2 is a perspective view of one of the bar clamping andsupporting membersshown in Fig. 1.

Fig. 3 is a view,partly in section, showing the preferred form of theimproved means for securing the bar clamping members to the spacing andsupporting strip.

Fig. 4 is a perspective View of the form shown in Fig. 1, with ltheclamping means bent over a bar.

Fig. 5 is a fragmentary view showing a slightly modified arrangement ofthe improved means for securing the bar clamping members to the spacingstrip,

1n placing reinforcing bars for concrete construction, it is desirableto have supports which insure quick arrangement .of the bars, uniformlyspaced apart transversely of the length of the bars. 'lihisV isconveniently accomplished by providing a plurality of bar clampingmembers combined with suitable spacing strips whereby said clampingmembers are spaced apart in series or groups. Various forms of. clampingmembers and. spacing means are shown in my copending applications SerialNo. 108,913, filed July 12, 1916, Serial No. 202,439, filed November 17,1917, and Serial No. 207,114, filed December 14, 1917.

lilhe present invention contemplates the production of a combined barsupporting Specification of Letters Patent.

Application filed February 6, 1918.

ratentea apnea, reis.. Serial No. 215,601.

and spacing device which is simplerin construction and less expensive tomanufacture than any of the forms heretofore proposed or used.

The modifications herein shown embody the same general construction,comprising a spacing strip or means 1 and bar clamping members or means2, said spacing and clamping means being separately formed and afterwardassembled and secured together by lugs formed on one of said means andbent over the other.

- Fach of the clamping members 2 as lierein illustrated is formed fromsheet metal so as to provide a seat 4, depending legs 5, and' upwardlydisposed fingers 6. The depending legs 5 and seat 4 constitute asubstantially inverted lil-shaped chair, and the fingers 6 arepreferably located at diagonally opposite sides thereof.

he spacing strip l is in the form of a comparatively narrow strip ofwrought metal straight from end to end, of uniform cross section and ofa Width not greater than the distance between the upwardly disposedingers 6 of the clamping members 2. rlhe spacing and bar clamping meansare secured together by lugs formed on one of said means and bent so asto have interlocking engagement with the other.

1n the preferred form of construction shown in Figs. 1 and 4, the lugs 3are formed on the strip 1. and are struck down therefrom and bent aroundopposite edges of the seat 4 of the clamping members 2. rihe lugs 3 areformed in pairs at certain specified intervals along the length of thestrip, the spacing of which is determined by the place where the deviceis to be used. A plurality of the clamping members are thus arranged inpredetermined spaced relation along the strip, and said clamping membersmay be set on the falsework in the desired arrangement, with very littletrouble and labor, and at the same time positively insure the properspacing of the bars.

In the modification shown in Fig. 5, lugs 7 are struck up from the seat4 of the clamping members 2 and extended through apertures formed in thespacing strip 1 at regular intervals along the length thereof. The lugsare bent down over the spacing strip for locking the clamping membersthereto.

Apertures 9 are formed at points along the spacing strip 1 so that aseries of the supports, if desired, may be held in position `011 thefalsework by suitable fastening means.

The reinforcing bars 10 are placed bctween the fingers 6 as shown inFig. 4, so as to rest uponthel strip 1 directly above the seats '4. Thefingers are then bent over the bars so that they are firmly gripped tothe supportin device.v Q

It will e understood that numerous details of the construction shown maybe alteredor omitted Without departing from the spirity of thisinvention as defined by the following claims.

I claim: Y

1. As an article of manufacture, a spacing and supporting device for barreinforcements for concrete, comprising separately formed spacing meansand clamping means, and lugs separate from the parts which clamp thebar, formed on one of said means bent so as to have interlockingengagement with the other for securing said clamping means at intervalsalong said spacing means.

2. As an article of manufacture, a spacing Vand supporting device forbar reinforcements for concrete, comprising a spacing strip, separatelyformed bar clamping means, and lugs formed on said strip and bent so asto have'interlocking engagement mesme with said clamping means forsupporting said clamping means on said strip.

3. As an article of manufacture, a spacing and su porting device for barreinforcements or concrete, comprising separately formed bar clampingmeans each having a pair of depending legs connected by a transversepart with upstanding fingers at opposite si es thereof, a spacing andVsupportlng strip of a Width not greater than the distance between saidupstanding fingers, and lugs formed on said strip and bent around saidtransverse art of said clamping means for securing said clamping meansat intervals along said strip.

4. As an article of manufacture, a spacing and supporting device for barreinforcements or concrete, comprising separately formed bar clampingmeans each having a pair of depending legs connected by a transversepart with upstanding fingers at opposite sides thereof, a spacing andsupporting strip, and lugs formed on said stri and bent around saidtransverse part o said clamping means for securing said clamping meansat intervals along said strip.

Signed at Chicago this 2nd day of February, 1918.

HENRY H. LAMPERT.

